Effects of dielectric substrates on piezoelectric transducer tunable filter

被引：7

作者：

Cao, Liangzu ^{[1
]}

Yan, Junmei ^{[1
]}

Yin, Lixia ^{[1
]}

机构：

[1] Jingdezhen Ceram Inst, Sch Mech & Elect Engn, Jingdezhen, Peoples R China

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2019年 / 61卷 / 10期

基金：

中国国家自然科学基金;

关键词：

dielectric substrate; passband characteristic; piezoelectric transducer; tunable filter;

D O I：

10.1002/mop.31895

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This article represents the effects of dielectric substrates on the performances of piezoelectric transducer (PET) tunable bandpass filters. The filter consists of two open loop resonators that are coupled by a magnetic coupling. A capacitive cross coupling between input and output port is introduced, which produces two transmission zeros in the lower and upper stopbands. Three dielectric substrates with various dielectric constants are used as perturbers, and their effects on the coupling coefficient and quality factor of the microstrip filter are analyzed. A PET tunable filter with each substrate as a perturber is fabricated and measured.

引用

页码：2399 / 2404

页数：6

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